Need help choosing exhaust.

[coltonk]

I have a 1984 GMC swb with a 350 and a pretty thumping cam. next step is exhaust so i can get it tagged and inspected. I need opinions on what exhaust to run and preferences anything will help. I'm leaning for flow master 40 series, however I have seen some info on the website about 40 series Delta flow and don't know the difference. I want loud and clean sound, I don't know if i want to run 2 1/2 inch or 3. like i said any suggestion would help. Here is what my truck sounds like with open headers.

( http://www.youtube.com/watch?v=g1Y0n...ature=youtu.be )

[355bullet]

bad ass!

[quadzero]

I can't really offer any help but I sure love the sound now.

[coltonk]

Yea I love the way it sounds. Thanks for checking it out anyways though.
It should be drivable by the end of the weekend. I just don't want to get a exhaust that takes to much away.
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[3r!c84]

your truck sounds good with that cam!

here is mine with a pretty healthy 400sbc
2.5 duels 40s flowmasters dumped before rear end..

84 c10 400sbc - YouTube

btw dont laugh at my lil aircleaner its long gone only one i had for the first run around the block..


here it is inside the cab.
sorry for the upside down vid youtube dont like my truck i guess

c10 pbir - YouTube

[INSIDIOUS '86]

Why flowmaster? Do you like how they sound?
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[3r!c84]

Originally Posted by INSIDIOUS '86

Why flowmaster? Do you like how they sound?
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im going to change mufflers soon.. want somthing diffrent. might go with moroso spril flows

[coltonk]

Originally Posted by INSIDIOUS '86

Why flowmaster? Do you like how they sound?
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What would you recommend INSIDIOUS '86? I'm open for any preferences.
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[INSIDIOUS '86]

I wanted something different as well. So I found a small outfit called spintech. Prob the best mufflers I've owned. The only drone is a few hundred rpm above idle which is a range your almost never in. So freeway cruzing is good on the ears. Plus they don't sound like anything else
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[76stepsidechevy]

Originally Posted by INSIDIOUS '86

I wanted something different as well. So I found a small outfit called spintech. Prob the best mufflers I've owned. The only drone is a few hundred rpm above idle which is a range your almost never in. So freeway cruzing is good on the ears. Plus they don't sound like anything else
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I agree with you, I finally made some 3 inch tailpipes and it really made a difference in sound too. Kinda funny, my truck idles a touch high at the moment due to tuning issues with my fuel injection and its right in that drone band at idle. Great sound and like you said like nothing else.

[INSIDIOUS '86]

You have them too?
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[3r!c84]

Got a video?
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[INSIDIOUS '86]

http://67-72chevytrucks.com/vboard/s...d.php?t=466886
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[76stepsidechevy]

Originally Posted by INSIDIOUS '86

You have them too?
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yup, I think there the regular pro-streets. I had full 2.25 exhuast that the back half of was damaged in an accident so I reused the front half and put 2.25 spintechs on with turndowns for a while. Finally got sick of the fumes coming in my sunroof so I bought some magnaflow universal 3" tailpipes. They ended up being 2 3" tails for a single exhaust dodge dakota so I cut one in 4 places and welded it back up to make a left side pipe. I cut the 2.25 outlet flanges off the mufflers and welded on some 3" ones to accept the new tails without being a bottleneck there.

[IB4BAMA]

I've got 87 with a stock 350, 2 1/2'' pipe no cat and 50 series Flowmaster exiting 90* behind the back tires. It sounds pretty good but if I had to do over I would prolly go with 40's.

Tim

[chevymotocross]

Thrush Welded. Basically a flowmaster 40 for half the price with just as good build quality and sound. Running these on my 305 and have been very impressed with no drone (exhaust running straight back and outside rollpan).

[cory d]

if you are going to run cat's i would stay away from flowmasters, if you arent, i think they sounds alright on a more build up engine but every dork in town puts on on his stock truck and puts a flowmaster sticker on his back window. i have hear spintechs in person and it makes me with i would have gone with them. i just went with summit welded mufflers (reboxed flowtech afterburners). i picked them after looking at this thread http://67-72chevytrucks.com/vboard/s...d.php?t=263014.

[K10Chase]

I have mid america chambered exhaust on my truck they used them on the old corvettes and they have a good sound plus they aren't too expensive.

[cory d]

here is my truck with 1 5/8 long tubes, 2.5" duals coming out before the rear wheels and summit welded mufflers

http://vimeo.com/40796121

[Malo83]

Flow 40's for me, running a single 3" exhaust with a 3" in and dual 2.5 outlets on my 83 dumped in front of the axle, love the deep rumble, and the drone, who needs a stereo that is music to my ears

[coltonk]

Originally Posted by Malo83

Flow 40's for me, running a single 3" exhaust with a 3" in and dual 2.5 outlets on my 83 dumped in front of the axle, love the deep rumble, and the drone, who needs a stereo that is music to my ears

Thanks Malo83, I think I'm probably going to go with a very similar set up. Do you have any videos?
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[Malo83]

Not yet but i'm gonna see about getting one done

[cory d]

i am not a fan of drone. but i also hate riding in a car whe the driver thinks they are 12 and have to have really loud base. i like my set up, i only get a little drone just off idle but that seams hard to avoid

[motornut]

i just got 40s on the 79,stock 305 2B
went stock manifolds 2.25 to duals ,H pipe ,all custom bent @ Speedy,hidden nice
dumped before the rear tires

on ramp.MOV - YouTube

80 to 100.MOV - YouTube